Daily ”snapshot” of the Cryosphere (terrestrial SWE + Sea Ice)

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Presentation transcript:

Daily ”snapshot” of the Cryosphere (terrestrial SWE + Sea Ice) 26 May 2017 10 Sept. 2017

35 year-long CDR time-series on snow conditions of Northern Hemisphere First time reliable daily spatial information on SWE (snow cover): Snow Water Equivalent (SWE) Snow Extent and melt (+ grain size) 25 km resolution (EASE-grid) Time-series for 1979-2016 Passive microwave radiometer data combined with ground-based synoptic snow observations Variational data-assimilation Available at open data archive (www.globsnow.info) Daily NRT production since 2010 Operational within EUMETSAT HSAF Takala, M., Luojus, K., Pulliainen, J., Derksen, C., Lemmetyinen, J., Kärnä, J.-P, Koskinen, J., Bojkov, B., “Estimating northern hemisphere snow water equivalent for climate research through assimilation of spaceborne radiometer data and ground-based measurements”, Remote Sensing of Environment, Vol. 115, Issue 12, 15 December 2011, doi: 10.1016/j.rse.2011.08.014

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